Please do not use arrow as a synonym for comma except in the privacy of your own cubicle. Otherwise, in the most general case, it can lead to breakage. Witness:

@things = split /,/ => $input; # works
use constant DELIMITER => ',';
@things = split DELIMITER => $input; # BREAKS (treats DELIMITER as a q
+uoted word)
@things = split DELIMITER, $input; # works
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Fat arrow should be used only when the quoting powers are wanted, and possibly to set up hash key/value pairs, paying special care to in-scope "use constants".

-- Randal L. Schwartz, Perl hacker